918064491 has 8 divisors (see below), whose sum is σ = 1252553280. Its totient is φ = 597809352.

The previous prime is 918064487. The next prime is 918064501. The reversal of 918064491 is 194460819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 918064491 - 2² = 918064487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (918064421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3558261 + ... + 3558518.

It is an arithmetic number, because the mean of its divisors is an integer number (156569160).

Almost surely, 2^918064491 is an apocalyptic number.

918064491 is a deficient number, since it is larger than the sum of its proper divisors (334488789).

918064491 is a wasteful number, since it uses less digits than its factorization.

918064491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7116825.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 918064491 is about 30299.5790564820. The cubic root of 918064491 is about 971.9062986526.

The spelling of 918064491 in words is "nine hundred eighteen million, sixty-four thousand, four hundred ninety-one".